Is there any possible way to skip algebra 1 and get a diploma?

I'm a home schooled senior (Who knows if real school would've fixed this problem) But I have been struggling with math my WHOLE LIFE. I can't even do simple non algebra in my head. Every test (Even when I think Ive gotten it) has failed, maybe gotten half the problems right if I'm lucky. With algebra 1 I think Ive finally met my limit. my brain just cant rap around it. Ive tried different text books and lessons, its all the same. and even though i did some math home work during Christmas break, I have one week vacation from it and i completely forgot it. And now its like I have to start my whole textbook right before I'm supposed to be graduating. I need my diploma so bad, I wanted to join the navy, and to become an LVN afterwords. Even when I think if I just tried hard enough...as soon as schools over I'm just going to forget it all completely anyways. I'm feeling pretty hopeless and stupid right now...Maybe there's some kind of life saving Algebra 1 book you know of...I just donno what to do anymore.